Pure and Conditional Obligations

• ARTICLE 1179. Every obligation whose performance does not depend upon a future or uncertain event, or upon a past event unknown to the parties, is demandable at once.

  Every obligation which contains a resolutory condition shall also be demandable, without prejudice to the effects of the happening of the event. (1113)
• ARTICLE 1180. When the debtor binds himself to pay when his means permit him to do so, the obligation shall be deemed to be one with a period, subject to the provisions of article 1197. (n)